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High-strength low-shrinkage PETG-G material for 3D printer consumables and preparation method thereof

A technology of PETG-G and 3D printer, which is applied in the field of PETG-G material and its preparation, and can solve the problems of limiting PETG application, high temperature of wire drawing and printing, etc.

Pending Publication Date: 2021-12-10
ZHUHAI SUNLU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the printing temperature is higher, up to 230°C
It is easy to cause "drawing" phenomenon during printing
These disadvantages limit the further application of PETG in 3D industry

Method used

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  • High-strength low-shrinkage PETG-G material for 3D printer consumables and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0053] Described a kind of preparation method for the PETG-G material of high strength and low shrinkage of 3D printer consumables, it comprises the steps:

[0054] S1. Stir the PETG resin, PBAT resin, ABS resin and diffusion oil evenly with a high-speed mixer, so that the diffusion oil is evenly dispersed on the surface of the resin;

[0055] S2, adding compatibilizer, antioxidant, lubricant and stirring evenly to obtain the mixed material;

[0056] S3. The uniformly mixed material is added from the main feeding port of the extruder, and the material is melted, extruded, drawn, water-cooled, pelletized, and dried to obtain high-strength and low-shrinkage PETG-G pellets.

[0057] In the step (S1), the stirring speed is 300-500 rpm, and the stirring time is 5-10 minutes; in the step (S3), the extruder is a SJ35 type twin-screw extruder, and the extrusion speed is 200~ 350 rpm, the temperature of each heating zone is independently 170-195°C. After step (S3), it is processed in...

Embodiment 1

[0068] Pour 1800 grams of PETG (Korean SK company, the brand name is K2012), 1200 grams of PBAT resin (Zhuhai Wantong Chemical Co., Ltd., the brand name is PBAT0120), and 150 grams of ABS resin into the high mixer, add 15 grams of diffusion oil, and use 300 Stir at a stirring rate of rev / min for 5min, so that the diffusion oil is evenly dispersed on the surface of the resin pellets; compatibilizer styrene-acrylonitrile-maleic anhydride copolymer 60 grams, lubricant interacid amide 9 grams, antioxidant 10103 gram into a high-mixer and stir evenly; use a stirring speed of 500 rpm to stir for 10 minutes, let it stand for 5 minutes, and then add a twin-screw machine to extrude.

[0069] The extrusion conditions of the twin-screw machine are: the temperature of each temperature section of the extruder from the feed port to the discharge die is 170°C, 175°C, 175°C, 180°C, 180°C, 180°C, 185°C, 185°C , 190°C, 190°C, 190°C, the extruder speed is 250 rpm. After the material is melted, ...

Embodiment 2

[0072] Pour 2100 grams of PETG (Korean SK company, the brand is K2012), 900 grams of PBAT resin (Zhuhai Wantong Chemical Co., Ltd., the brand is PBAT0120), 180 grams of ABS resin into the high mixer, add 15 grams of diffusing oil, and use 300 Stir at a stirring rate of rev / min for 5min, so that the diffusion oil is evenly dispersed on the surface of the resin pellets; compatibilizer styrene-acrylonitrile-maleic anhydride copolymer 60 grams, lubricant interacid amide 9 grams, antioxidant 10103 gram into a high-mixer and stir evenly; use a stirring speed of 500 rpm to stir for 10 minutes, let it stand for 5 minutes, and then add a twin-screw machine to extrude.

[0073] The extrusion conditions of the twin-screw machine are: the temperature of each temperature section of the extruder from the feed port to the discharge die is 170°C, 175°C, 175°C, 180°C, 180°C, 180°C, 185°C, 185°C , 190°C, 190°C, 190°C, the extruder speed is 250 rpm. After the material is melted, extruded, drawn...

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Abstract

The invention discloses a high-strength low-shrinkage PETG-G material for 3D printer consumables and a preparation method thereof. The high-strength low-shrinkage PETG-G material for 3D printer consumables comprises the following components in parts by weight: 60-80 parts of a PETG resin, 20-40 parts of a PBAT resin, 5-15 parts of an ABS resin, 1-5 parts of a compatilizer, 0.1-0.5 part of a lubricant, 0.1-0.5 part of an antioxidant and 0.1-0.5 part of diffusion oil. The high-strength low-shrinkage PETG-G material for 3D printer consumables has the beneficial effects that the printing wire drawing performance is improved, the printing precision is improved, and the printing temperature is reduced.

Description

technical field [0001] The invention relates to the technical field of a high-strength and low-shrinkage PETG-G material used for 3D printer consumables and a preparation method thereof. Background technique [0002] At present, the most popular 3D printing material on the market is polylactic acid (PLA) material, because of its low printing temperature, no toxic gas generated during printing, and the device is not easy to warp and deform after printing, it has been recognized in the 3D printing industry. Wide range of applications. However, there are also problems such as high price and insufficient strength of the printed model. All other materials in the 3D printing industry such as PC, PA, ABS, etc. still occupy a place. PETG is a new type of 3D printing material that has emerged in recent years. [0003] PETG is an amorphous copolyester. The common comonomer of PETG is 1,4-cyclohexanedimethanol (CHDM), which is called polyethylene terephthalate-1,4-cyclohexane Dimet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L55/02C08L35/06C08L91/00C08K5/20C08K5/134B33Y70/10
CPCC08L67/02B33Y70/10C08L55/02C08L35/06C08L91/00C08K5/20C08K5/1345
Inventor 蒋伦梁艺
Owner ZHUHAI SUNLU IND
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